Extension-table.



B. E. OLSON.

EXTENSION TABLE.

APPLICATION FILED DEC. 11. 1913.

1 1%,53w Patented June 22, 1915.

THE NORRIS PETERS C0 PHOTO-LITHQ. WASHINGTON. D. C.

UNTTED @TATEFi PATENT @FFTCE.

BROR EUGEN OLSQN, 0F STOCKHOLM, SSASKATCHEWAN, CANADA.

tsxrnnsron-rannn.

masses.

Specification of Letters'Patent. Patented June 22, 11915 Applicationfiled December 11, 1913. Serial No. 806,125.

To all whom it may concern Be it known that I, Bron EUGEN OLsoN, asubject of the King of Great Britain, residing at Stockholm, in theProvince of Saskatchewan, Dominion of Canada, have invented certain newand useful Improvements in Extension-Tables; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

This invention relates to improvements in tables, and particularly toextension tables.

One object of the invention is to provide a table of this character inwhich the ex-. tension boards will be automatically lifted into properposition successfully when the table is pulled apart.

Another object is to provide a novel means for supporting the board inproper position and means for operating such supporting means.

Other objects and advantages, will be apparent from the followingdescription, when taken in connection with the accompanying drawings.

in the drawings: Figure 1 is a side elevation of my improved extensiontable. Fig. 2 is a bottom plan View. Fig. 3 is a vertical longitudinalsectional view taken on a line intermediate the sets of the extensionslides. Fig. 4 is an enlarged transverse section on the line 44 of Fig.3. Fig.6 is a fragmentary view showing one of the boards in elevatedposition, Fig. 6 is a longitudinal sectional View on the line 6-6 ofFig. 2.

Referring particularly to the accompanying drawing, 1010 represent thetransverse battens, which are arranged in parallel relation, anddisposed at opposite ends of the table. Secured to the batten 10 is aboard 11, this board extending a short distance beyond the end of thetable, and to a much greater extent toward the opposite end. Secured tothe other batten 10 is the main table top 12, this board beingconsiderably larger than the other and forming the greater part of thetop of the table. The lower portion of the free edge of the board 12 isbeveled as indicated at 13, and for a purpose which will appearhereinafter.

Secured to the underside of the battens 10 and 10 are the extensionslides 13 and 14, these being arranged in pairs, and disposed betweeneach pair is a third slide 15. On the inner vertical face of each of theslides 12 is formed a longitudinally extending undercut groove 16, anddisposed to slide in the groove are the flattened heads 17 of the links18 hereinafter described. Disposed longitudinally along the inner faceof each of the slides 13, and mounted in the guides 19 is a rod 20, oneend of which extends beyond the batten 10 and provided with a suitablehandle 21. This rod is provided with a plurality of pairs of laterallyextending pins 22 which are arranged to engage the before-mentionedlinks 18 when the rod is given a partial rotation and a longitudinalmovement. Disposed between the board 12 and the extension slides are theextension boards 23 and 241, each of which carries on its underface ateach end a plurality of springs 25, these springs bearing with theirlower ends against the upper faces of the slides 13. As clearly shown inFig. 8, these springs are compressed. Pivotally carried in recesses 26in the lower face of the board 12 are the spring pressed levers 27, eachof these levers carrying in its free end a roller 28, said roller beingpreferably formed of rubber so that the upper faces of the boards 23 and2 1- will not be marred. Normally these levers 2'? hold the boards 23and 24: in depressed position, and permit the board 12 to readily slideover them, when the table is being extended. When both of the boards 23and 2% have been raised to the level of the table top the levers 27swing down and rest on the slides 14: to support the board 12. On theinner edge, and on the lower face of the board 11 are depending stopmembers 29 against which the outer edge of the outermost board 23engages so that said board cannot move under the board 11, but will beforced to move vertically upward and rest its outer edge against theinner edge of the board 11. The upper end of each of the links 18 ispivotally connected with the lower faces of the boards 23 and 24 asclearly shown. While I have described one operating rod, it will beunderstood that there is another similar rod 20 similarly mounted andoperable on the other extension slide 13.

When it is desired to extend the table the parts carrying the boards 11and 12 are pulled apart a distance equal to the width of the board 23,whereupon the springs beneath the board will immediately force the boardupwardly flush with the upper faces of the boards 11 and 12. The links18 being pivotally connected to the board 23 and to the slides l3, theboard 23 'will be limitedin its upwardmovement thereby, these links alsoserving to hold the board 23 against depression during the use of thetable. To extend the table farther, the end parts of the table arepulled a suificient distance to permit of the board 24: moving upwardlybetwen the inner edge of the board 12 and the adjacent edge of the board23.

To close the table the rods are given a quarter of a turn, pulled out,and held in this position. This results in the pins carried by the rodsengaging with the links, and sliding the flattened heads along theslots, resulting in the lowering of the board 24 below the surface ofthe boards 11 and 12, and permitting the beveled edge of the board 13 toride thereover and further depress the board so that the said bevelededge can be pushed against the board 23 to force the same against theinner edge of the board 11. To move the board 28, the operation of therods is repeated, so that the board 23 will be forced below the top ofthe table and permit the edge of the board 12 to be forced against theboard 11. The lever 27 engages one end wall of the recess 26 to preventthe lever from swinging past the vertical.

From the foregoing, it will readily be seen that I have provided asimple and eflicient folding table, and one in which the extensionboards automatically spring up into place, when the table is to beextended. Attention is also called to the peculiar means employed forimparting an initial downward movement to each of the boards when thetable is to be folded. What is claimed is: 1. In a folding table,transversely arranged end battens, extension slides connected thereto,table top sections carried by the battens, the inner free edge of one ofthe top sections having its under edge beveled, a plurality ofresiliently supported boards disposed between the extension slide andthe beveled top section, said boards being arranged in a longitudinalseries in the same plane, depending stop members carried by the othertop section for engagement by the edge of the adjacent board means,pivot-ally and slidably connected to the boards connected to between theboards and the extension slides for supporting the boards in elevatedposition and means carried by the successive slides for engagement withthe said means to move the means out of supporting position, whereby theboards are given an initial downward movement.

2. In an extension table top, table top sections fixed to the frame ofthe table, vertically movable springpressed auxiliary boards supportedbelow the table top, said frame including extension slides each providedwith a longitudinal series of undercut grooves, links pivotallyconnected to the said boards and having heads slidably disposed in thegrooves, and longitudinally slidable operating rods mounted on theextension slide and provided with laterally extending pins forengagement with the said links to impart an initial downward movement toeach of the boards.

In testlmony whereof, I affix my signature, in the presence of twowitnesses.

BROR EUGEN OLSON.

Witnesses I-IoLenR MUNOH, MATTHEW KENNEY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington. D. G.

